#28368B#28368B
#28368B is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.7% C 0.141 H 270.8°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).
Color values
| HEX | #28368B |
|---|---|
| RGB | rgb(40, 54, 139) |
| HSL | hsl(232, 55%, 35%) |
| HSV | hsv(232, 71%, 55%) |
| CMYK | cmyk(71.2%, 61.2%, 0%, 45.5%) |
| CIE-LAB | lab(26.60, 24.48, -49.05) |
| CIE-LCH | lch(26.60, 54.82, 296.53°) |
| OKLab | oklab(37.68% 0.0021 -0.1414) |
| OKLCH | oklch(37.68% 0.141 270.8) |
| XYZ | xyz(6.8529, 4.9529, 25.0159) |
| Luminance | 0.0495 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 4.69
Blueberry
#464196
ΔE00 5.19
Darkslateblue
#483D8B
ΔE00 5.47
Cobalt (survey)
#1E488F
ΔE00 7.00
Darkish Blue
#014182
ΔE00 7.26
Cobalt
#0047AB
ΔE00 7.42
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#28368B #8B7D28
analogous
#28688B #28368B #4B288B
triadic
#28368B #8B2836 #368B28
tetradic
#28368B #8B2868 #8B7D28 #288B4B
square
#28368B #8B2868 #8B7D28 #288B4B
split-complementary
#28368B #8B4B28 #688B28
monochromatic
#0D112C #1A245B #28368B #3648BB #5D6DD0
Accessibility & contrast
On white
10.55
#28368B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.99
#28368B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #28368B
10.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##28368B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##28368B | 1.00 | 10.55 | 1.99 | 10.55 |
| #FFFFFF | 10.55 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.55 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00448E
Deuteranopia (green-blind)
#003A89
Tritanopia (blue-blind)
#004B5B
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #28368b; /* rgb */ color: rgb(40, 54, 139); /* oklch */ color: oklch(37.7% 0.141 270.8);
Tailwind
colors: {
custom: {
50: '#706cae',
500: '#28368b',
950: '#000000',
},
}SCSS
$custom: #28368b; $custom-light: #706cae; $custom-dark: #000000;
JSON
{
"hex": "#28368b",
"rgb": {
"r": 40,
"g": 54,
"b": 139
},
"hsl": {
"h": 231.515,
"s": 55.307,
"l": 35.098
},
"oklch": {
"l": 0.37679,
"c": 0.14145,
"h": 270.8
},
"luminance": 0.04954
}Semantic roles & 50–950 ramp
primary
#28368B
secondary
#B6A959
accent
#C949DF
background
#F7F6FA
surface
#EDEBF4
border
#C8C6CE
text
#080710
muted
#7B7A7F